.nav-left-box {
  background: #000000;
  position: fixed;
  left: 0;
  top: 0;
  right: 0;
  height: 0.44rem;
  display: flex;
  align-items: center;

  z-index: 999;
  .left-icon-option {
    width: 1.2rem;
    .left-icon {
      height: 0.24rem;
      width: 0.24rem;
      display: block;
    }
  }
  .center-txt {
    flex: auto;
    text-align: center;
    font-weight: 500;
    color: #fff;
    font-size: 0.18rem;
  }
  .right-icon {
    width: 1.2rem;
  }
}
